The New and Improved OWL - now features a cumulative memory feature, making it easier than ever to monitor electricity usage. Kit contains: 1x Transmitter, 1x Display, 1x Standard Sensor, Batteries and Instructions Keeping an eye on your electrical usage has never been easier than with the OWL Wireless Energy Monitor. This revolutionary device, which aims to help in the fight against climate change, is set to show millions of people just how much electricity we waste in our homes, whilst highlighting the money we can all save as a result. The Owl Wireless Electricity Meter monitors the home's electricity supply and, for the first time, provides real time monetary information about the household's energy usage. When lights and appliances are turned on, the Owl Electricity Monitor's easy-to-read LCD monitor reveals exactly how much electricity is being used, how the cost of electricity per hour changes and how much harmful CO2 your home is emitting. By simply turning off appliances when not in use, or being used needlessly, UK consumers can actually save up to 25% of their electricity usage - a saving that translates directly to reducing their monthly bills and households' harmful carbon emissions